This is MTV Geek's Battle Arena Otaku Fight! Fight! A tournament-style, knock-down, drag-out, free-for-all, battle royale featuring your favorite anime, manga and Japanese pop-culture characters! Each arena match-up will be posted and voted on by you, the MTV Geek reader, and each winner will advance closer and closer to becoming the supreme reigning champion of the Battle Arena Otaku! Who will take the top spot? Sailor Moon? Godzilla? Hello Kitty? There's only way to find out…FIGHT! FIGHT!

Now these two unorthodox and very different heroes are on opposite sides of the contest. Does Spike just have to continue to keep his cool to walk away with this one? Or will Luffy's indomitable can-do spirit help him win this battle like so many others from his past?